Hydrant



Miren drains arena tries.,

PAUL B. PERKINS, OF NORTH SPRINGFIELD, MISSOURI.

HYRANT.

SPECIFICATION forming part of Letters Patent No. 358,567, dated March l, 1887. v

Application filed April 2, 1886. Serial No. 197,577. (No model.)

To all whom if may concern:

Be it known that I, PAUL B. PERKINs, of North Springfield, in the county of Greene and State of Missouri, have invented certain new and useful Improvements in Hydrants; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in hydrants, the object of the same being to provide a fire-hydrant that can be inspected or repaired and the main valve, cap, rod, and connecting parts removed without shutting off the Water from the main.

A further object is to provide against loss of water in the event of accidental breakage ofthe stand-pipe of the hydrant and to remedy the defects heretofore experienced in similar devices for the same purposes.

The accompanying drawing shows a verti' cal section of hydrant constructed upon my improved principle.

A is the base of hydrant, by which connection is made to the main. B is the standpipc, hanged at its lower end for attaching it to the base, and is sufficient in length below the level of the pavement to preventfreezing,

and above for the convenience of connecting thehose at the nozzle, oneofwhich is shown at C. D is a cap secured upon the top of the stand-pipe and protecting and covering the interior mechanism; This cap overlaps the edge or periphery of the stuffing-box F and locks the latter in place, and, together with said stuffing-box, supports the nut E,which latter is provided with reduced ends, which rest in bearings formed in the cap and stuffing-box.

G is the main valve, having rubber disk-face H. This valve is guided by wings I, formed on the inner face of the base, and is provided with an annular groove, J, which communicates with the drip-opening 2, formed in the base near the upper end thereof, so that when the valve is seatedtlie drip is opened and the water in the standpipe may drain out, thereby preventing freezing. When this valve is opened, the groove is elevated above the opening and the drip is immediately closed by the portion of the valve G below the groove.

K is the secondary automatic valve, located within the base below the valve G, and supplied with a similar rubber disk or bearing face. This valve is provided with a hollow spindle, L, fitting looselyinto the socket L in the base A, and inclosing a spiral spring,which exerts an upward pressure and keeps the auxiliary valve constantly against the central point, G, of main valve G, so that it moves up and down on the opposite side of the common seat G/ simultaneously with the main valve. The socket L is in open communication at or near` the bottom thereof with the chamber iu the base, thereby avoiding liability of obstruction by sediment to the working of the valve. These valves, as described, and the openingnut E at top are all connected in the operation by means of stem M, having a screwthreaded upper end, which the nut E operates, the said stem being connected to the valve at the botv tom by means ofa key, 3. This stem is'prevented from turning by means of a forked arm, N, fastened to the stem and straddling the projection 4 on stand-pipe,

O is a stop-bolt adjnstably secured in the top of the nut E over the upper end of the stem M. This bolt is adjusted a sufficient distance into the nut E to stop the upward movement of the stem and main valve when the latter is open and in operation.

The operation is as follows: Ifthe main valve lifts one inch for full opening, the distance from the top end of stem M to the bottom of the stop-bolt O should be one inch. Now, by turning the nut E the thread on same will cause the spindle M to rise one inch, striking the end of stopbolt, and the main valve will be wide open, allowing a free passage of the water. Asthe secondary valve is at least one and onehalf inch below the seat when the main valve is open, the secondary valve is still some distance away from its seat when theinaiu valve is wide open. Now, if I desire to remove the main valve G, the cap, and stem from the hydrant, I unscrew and take out the stopbolt O, which permits the top of the stem M to risc sufficiently high to seat the secondary valve K against the under side of seat G', where it is held in place by the pressure of the Water in the main from the stand-pipe. To replace the parts, the main valve and stem are lowered into place until the central points of the main IOG valve sit in socket of the secondary valve K. The cap is then bolted in position and the nut E turned until the main valve is seated, when the stop-bolt O is replaced as before, and the hydrant is ready for use.

I am aware that it is not broadly new to provide a hydrant with a secondary valve adapted to close and prevent the escape of water when the main valve is removed, and hence I make no claim to such a construction, broadly.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is- Y l'. rIhe combination, with a vstand-pipe, a stufingbox loosely mounted thereon, and a cap secured on the stand-pipe and locking the stuit'- ing-boX thereon, ofthe nuthaving reduced ends and journaled in the cap and stuffing-box, the stop-bolt adjustably secured in the upper exposed end of the nut, the valve-stein, screwthreaded at its upper end and engaging the lower end of the nut, a valve secured to said stem and a second valve-stem, and a sp1-ing for forcing the second valve upwardly.

2. The combination, with a base having a valve-seat, the latter having bearing-surfaces for valves on its opposite sides, and a standpipe, of the nut, a stop-bolt secured to the nut for limiting the upward movement of the valve-stem, the valve stem secured to the lower end of the nut and carrying a main valve adapted to rest against the upper face of the valve seat, the auxiliary valve adapted to rest against the lower face of the valve-seat and engaging a projection depending from the main valve, whereby the auxiliary valve is moved downwardly by the main valve, and a spring for moving the auxiliary valve upwardly.

3. The combination, with the base having a socket, and a valve-seat located above said socket, the said va1ve-seat having bearingfaces for valves on its opposite sides, a standpipe secured to said base, a nut secured to the upper end of the standpipe, and a stop-bolt adjustably secured in the upper end of the nut, of the valve-stem operated by the nut and carrying a valve adapted to rest on the upper face of the valve-seat, an auxiliary valve adapted to be moved downwardly by the main-valve stem and having a hollow shank, the latter resting within the socket in the base, and a spring located within the hollow shank, substantially as set forth.

4:. The combination,with the base having a series of wings and a drip-opening formed in one of said wings, of avalve having a peripheral groove, the latter adapted to register with the drip-opening in the wing when the valve is in a closed position.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

PAUL B. PERKINS.

Witnesses:

HERBERT VALKER, OHAs. E. BRooiis. 

